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Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router is a paid API for AI agents from whale-momentum.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).
Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-screened tool results through a single connection
Price / call$0.01
Success—
StatusUnknown
How this service works
Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall. (Live x402 v2, IETF MPP & MCP endpoint at https://whale-momentum.agentdiet.dev/v1/broker/catalog)
Output
A compressed catalog response (up to 85% token reduction) listing matched MCP servers and A2A tools relevant to the query, with metadata about each tool, passed through a Prompt-Guard firewall to strip malicious injections before returning results.
Example use cases
Discover tools for on-chain risk
“Search the tool catalog for MCP servers or A2A agents that can do on-chain risk analysis or DEX token intelligence — show me what's indexed.”
Find a GitHub security audit agent
“Look through the MCP and A2A index for any tools that can run a GitHub security audit or code scanning — I need a single connection I can route through.”
Verify an endpoint URL is in the index
“Can you check whether 'https://whale-momentum.agentdiet.dev/v1/broker/catalog' is already listed and verified in the MCP tool discovery index?”
Technical details
Endpoint
POSThttps://whale-momentum.agentdiet.dev/v1/broker/catalog?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to discover which MCP servers or A2A tools are available for a specific capability without pre-knowing their URLs. It is especially valuable when building dynamic swarm orchestration, when you want a single connection point instead of querying hundreds of registries individually, or when you need token-compressed results with built-in prompt-injection protection. Prefer alternatives (like direct MCP server calls) once you already know the target endpoint URL.
Side effects
- Empty results if no indexed tools match the query string
- Query too vague or too short (minLength:1 enforced but semantically empty queries return poor matches)
- Firewall may block or redact results containing suspicious payloads
- Payment required error (HTTP 402) if $0.01 USDC per call is not pre-authorized
- Duplicate requests without Idempotency-Key may result in double charges on retries
- Index may not reflect newly added MCP servers if not yet crawled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
Output
Schema · Response
{
"type": "object"
}Reviews
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Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"